DE19839287A1 - Method to determine position of edge of rolled metal band - Google Patents

Method to determine position of edge of rolled metal band

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Publication number
DE19839287A1
DE19839287A1 DE1998139287 DE19839287A DE19839287A1 DE 19839287 A1 DE19839287 A1 DE 19839287A1 DE 1998139287 DE1998139287 DE 1998139287 DE 19839287 A DE19839287 A DE 19839287A DE 19839287 A1 DE19839287 A1 DE 19839287A1
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Germany
Prior art keywords
metal strip
distance
edge
distance sensor
sensor
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Granted
Application number
DE1998139287
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German (de)
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DE19839287C5 (en
DE19839287C2 (en
Inventor
Andre Berghs
Joachim Baumann
Martin Beyfus
Felix Tuerk
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Siemens AG
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Siemens AG
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Priority to DE1998139287 priority Critical patent/DE19839287C5/en
Publication of DE19839287A1 publication Critical patent/DE19839287A1/en
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Publication of DE19839287C2 publication Critical patent/DE19839287C2/en
Publication of DE19839287C5 publication Critical patent/DE19839287C5/en
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/342—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells the sensed object being the obturating part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The method involves using at least one proximity sensor (2-8) to measure the distance (h) between the proximity sensor from the metal band (1). The measuring area (9-15) of the proximity sensor is not completely covered by the metal band. The degree of overlap of the proximity sensor by the metal band is calculated using the distance measured by the proximity sensor and a value of the actual distance between the proximity sensor from the metal band. The degree of overlap is used to determine the position (P) of the edge of the metal band.

Description

Die Erfindung betrifft ein Verfahren bzw. eine Einrichtung zur Bestimmung der Position der Kante eines Metallbandes.The invention relates to a method and a device to determine the position of the edge of a metal strip.

Aufgabe der Erfindung ist es, ein Verfahren bzw. eine Ein­ richtung zur präzisen und wünschenswerterweise kostengünsti­ gen Bestimmung der Position der Kante eines Metallbandes an­ zugeben.The object of the invention is a method or a direction to the precise and desirably inexpensive determination of the position of the edge of a metal strip admit.

Die Aufgabe wird erfindungsgemäß durch ein Verfahren gemäß Anspruch 1 oder Anspruch 2 bzw. eine Einrichtung gemäß An­ spruch 7 oder Anspruch 8 gelöst. Dabei wird zur Bestimmung der Position einer Kante eines gewalzten Metallbandes mittels zumindest eines Abstandssensors zur Messung des Abstands des Abstandssensors von dem Metallband, wobei der Meßbereich des Abstandssensors unvollständig vom Metallband überdeckt ist, aus dem mittels des Abstandssensors gemessenen Abstands und einem Wert des tatsächlichen Abstands des Abstandssensors von dem Metallband der Grad der Überdeckung des Abstandssensors durch das Metallband errechnet und daraus die Position der Kante des Metallbandes bestimmt. Alternativ dazu wird zur Be­ stimmung der Position einer Kante eines gewalzten Metallban­ des mittels zumindest zweier Abstandssensoren zur Messung der Abstände der Abstandssensoren von dem Metallband, wobei der Meßbereich eines ersten Abstandssensors unvollständig und der Meßbereich eines zweiten Abstandssensors vollständig vom Me­ tallband überdeckt ist, aus den mittels der Abstandssensoren gemessenen Abständen der Grad der Überdeckung des ersten Ab­ standssensors durch das Metallband errechnet und daraus die Position der Kante des Metallbandes bestimmt.The object is achieved according to the invention by a method Claim 1 or claim 2 or a device according to An claim 7 or claim 8 solved. It becomes a determination the position of an edge of a rolled metal strip by means of at least one distance sensor for measuring the distance of the Distance sensor from the metal strip, the measuring range of Distance sensor is not completely covered by the metal strip, from the distance measured by means of the distance sensor and a value of the actual distance of the distance sensor from the degree of coverage of the distance sensor calculated by the metal band and from this the position of the Edge of the metal band determined. Alternatively, Be the position of an edge of a rolled metal ban by means of at least two distance sensors for measuring the Distances of the distance sensors from the metal strip, the Measuring range of a first distance sensor is incomplete and the Measuring range of a second distance sensor completely from the me tallband is covered, by means of the distance sensors measured distances the degree of coverage of the first Ab level sensor calculated by the metal strip and from it the Position of the edge of the metal strip determined.

Auf diese Weise ist es möglich, die Position der Kante eines Metallbandes besonders präzise und auf kostengünstige Weise zu bestimmen. In this way it is possible to determine the position of the edge of a Metal strip particularly precise and inexpensive to determine.  

In vorteilhafter Ausgestaltung der Erfindung wird die Posi­ tion der Kante des Metallbandes aus den gemessenen Abständen mehrerer Abstandssensoren, deren Meßbereich vollständig vom Metallband überdeckt ist, bestimmt.In an advantageous embodiment of the invention, the Posi tion of the edge of the metal strip from the measured distances several distance sensors, whose measuring range is completely from Metal band is covered, determined.

In weiterhin vorteilhafter Ausgestaltung der Erfindung wird die Kante des Metallbandes aus zeitlichen Mittelwerten der mittels der Abstandssensoren gemessenen Abstände hestimmt.In a further advantageous embodiment of the invention the edge of the metal strip from temporal averages of the distances measured by means of the distance sensors.

In weiterhin vorteilhafter Ausgestaltung der Erfindung wird die Kante des Metallbandes mittels abgespeicherter Kalibrie­ rungskurven bestimmt.In a further advantageous embodiment of the invention the edge of the metal strip using stored calibration determined.

In vorteilhafter Ausgestaltung der Erfindung wird die Breite des Metallbandes durch Bestimmung der Positionen beider Kan­ ten des Metallbandes bestimmt, wobei beide Positionen vonein­ ander subtrahiert werden.In an advantageous embodiment of the invention, the width of the metal strip by determining the positions of both channels ten of the metal strip, with both positions of one others are subtracted.

Weitere Vorteile und Einzelheiten ergeben sich aus der nach­ folgenden Beschreibung von Ausführungsbeispielen und aus den Unteransprüchen. Im einzelnen zeigen:Further advantages and details emerge from the following description of exemplary embodiments and from the Subclaims. In detail show:

Fig. 1 ein Ausführungsbeispiel für die Erfindung, Fig. 1 shows an embodiment of the invention,

Fig. 2 ein Beispiel für einen Zusammenhang zwischen Aus­ gangsspannung eines Abstandssensors und dessen Überdeckungsgrad durch das Metallband, Fig. 2 shows an example of a relationship between output voltage from a distance sensor and the degree of overlap of the metal strip,

Fig. 3 eine Kennlinie für verschiedene Abstände. Fig. 3 shows a characteristic curve for different distances.

Fig. 1 zeigt ein Ausführungsbeispiel der Erfindung. Dabei be­ zeichnet Bezugszeichen 1 ein Metallband. Dieses Metallband ist im Querschnitt dargestellt. Es sind Abstandssensoren 2, 3, 4, 5, 6, 7 und 8 vorgesehen. Die Abstandssensoren 2, 3, 4, 5, 6, 7 und 8 haben bestimmte Meßbereiche 9, 10, 11, 12, 13, 14, 15 zur Messung ihres Abstandes vom Metallband 1. Der Meß­ bereich 9 des Abstandssensors 2 wird jedoch nicht vollständig vom Metallband 1 abgedeckt. Er liefert deshalb verfälschte Meßwerte. Fig. 1 shows an embodiment of the invention. Reference numeral 1 denotes a metal strip. This metal strip is shown in cross section. Distance sensors 2 , 3 , 4 , 5 , 6 , 7 and 8 are provided. The distance sensors 2 , 3 , 4 , 5 , 6 , 7 and 8 have certain measuring ranges 9 , 10 , 11 , 12 , 13 , 14 , 15 for measuring their distance from the metal strip 1 . The measuring area 9 of the distance sensor 2 is not completely covered by the metal strip 1 . It therefore supplies falsified measured values.

Das Ausmaß einer solchen Meßwertverfälschung ist beispielhaft in Fig. 2 dargestellt, wobei die Ausgangsspannung U eines Ab­ standssensors bei einem festen Abstand h über dessen Position P in bezug auf das Metallband 1 dargestellt ist. In Fig. 2 sind drei Bereiche 30, 31, 32 dargestellt. Im Bereich 30 ist der Abstandssensor, der etwa einen Gesamtmeßbereich von 20 mm abdeckt, nicht durch das Metallband 1 abgedeckt. Im Bereich 31 ist der Abstandssensor teilweise von dem Metallband 1 ab­ gedeckt. Im Bereich 32 ist der Abstandssensor vollständig vom Metallband 1 abgedeckt.The extent of such a measured value falsification is shown by way of example in FIG. 2, the output voltage U of a position sensor being shown at a fixed distance h above its position P with respect to the metal strip 1 . Two areas 30 , 31 , 32 are shown in FIG . In the area 30 , the distance sensor, which covers approximately a total measuring area of 20 mm, is not covered by the metal strip 1 . In the area 31 , the distance sensor is partially covered by the metal strip 1 . In the area 32 , the distance sensor is completely covered by the metal strip 1 .

Der Abstand h zwischen den Abstandssensoren 2, 3, 4, 5, 6, 7 und 8 und dem Metallband 1 wird zur Berechnung der Überdec­ kung des Metallbandes 1 z. B. einer Recheneinrichtung eingege­ ben, mittels der die Bestimmung der Überdeckung des Metall­ bandes 1 durch den Meßbereich 9 des Abstandssensors 2 berech­ net wird. Vorteilhaft ist es jedoch, diesen Abstand online zu bestimmen. Dazu wird der zeitliche Mittelwert der Aus­ gangssignale der Abstandssensoren 10, 11, 12, 13, 14, die vollständig vom Metallband 1 überdeckt sind, gebildet. Aus diesem Gleichanteil wird der Abstand der Abstandssensoren 2, 3, 4, 5, 6, 7 und 8 von dem Metallband 1 bestimmt.The distance h between the distance sensors 2 , 3 , 4 , 5 , 6 , 7 and 8 and the metal strip 1 is used to calculate the overdec tion of the metal strip 1 z. B. a computing device, by means of which the determination of the coverage of the metal strip 1 by the measuring range 9 of the distance sensor 2 is calculated. However, it is advantageous to determine this distance online. For this purpose, the time average of the output signals from the distance sensors 10 , 11 , 12 , 13 , 14 , which are completely covered by the metal strip 1 , is formed. The distance between the distance sensors 2 , 3 , 4 , 5 , 6 , 7 and 8 from the metal strip 1 is determined from this direct component.

Die Kennlinie in Fig. 2 ist nur für einen definierten Abstand h gültig. Um für beliebige Abstände eine Kennlinie zu erhal­ ten und gleichzeitig den Aufwand bei der Kalibrierung gering zu halten, wird folgendes Verfahren angewandt (siehe Fig. 3):
Für zwei Abstände h1 und h2 werden jeweils ca. 10 Meßpunkte, in Fig. 3 dargestellt durch Kreuze (von denen eines exempla­ risch mit Bezugszeichen 33 bezeichnet ist), bei verschiedenen Bandkantenpositionen P abgespeichert. Für einen beliebigen Wert h, für den h1 < h < h2 gilt, können die entsprechenden 10 Meßpunkte durch lineare Interpolation berechnet werden. Die Stützstellen, die durch lineare Interpolation ermittelt wer­ den, sind in Fig. 3 durch Kreise dargestellt, von denen einer exemplarisch mit Bezugszeichen 37 bezeichnet ist.The characteristic curve in FIG. 2 is only valid for a defined distance h. The following procedure is used to obtain a characteristic curve for any distance and at the same time to keep the calibration effort low (see Fig. 3):
For two distances h 1 and h 2 , about 10 measuring points each, shown in FIG. 3 by crosses (one of which is designated by reference numeral 33 ), are stored at different strip edge positions P. For any value h, for which h 1 <h <h 2 applies, the corresponding 10 measuring points can be calculated by linear interpolation. The interpolation points, which are determined by linear interpolation, are represented in FIG. 3 by circles, one of which is designated by way of example with reference number 37 .

Anschließend wird durch die 10 Kalibrierwerte eine passende Funktion 36 gefittet (least-square-fit). Als Fit-Funktion kommt vorteilhafterweise die Fermi-Verteilung in Frage.A suitable function 36 is then fitted using the 10 calibration values (least-square-fit). The Fermi distribution is advantageously a suitable fit function.

Dabei ist U die Ausgangsspannung des Abständssensors, P ist die horizontale Bandkantenposition und a0, a1, a2, a3 sind Fitparameter, die durch den Fitalgorithmus bestimmt werden.U is the output voltage of the distance sensor, P is the horizontal band edge position and a 0 , a 1 , a 2 , a 3 are fit parameters which are determined by the fit algorithm.

Bezugszeichen 34 und 35 bezeichnen die entsprechenden Kurven für h2 und h1.Reference numerals 34 and 35 denote the corresponding curves for h 2 and h 1 .

Zum Bestimmen der Bandkante wird die Abstandssensorspannung U gemessen und daraus die Bandkantenposition berechnet. Dazu wird die Umkehrfunktion obiger Formel gebildet:
To determine the strip edge, the distance sensor voltage U is measured and the strip edge position is calculated therefrom. To do this, the inverse function of the above formula is formed:

Soll die Bandkante über einen weiten Bereich bestimmt werden, so werden mehrere Abstandssensoren dicht nebeneinander ge­ setzt wie in Fig. 1 gezeigt. Zur Auswertung der Bandkante wird der Abstandssensor herangezogen, der nur teilweise bedeckt ist. Das ist der Abstandssensor, für den der Ausdruck
If the band edge is to be determined over a wide range, a plurality of distance sensors are placed close together as shown in FIG. 1. The distance sensor, which is only partially covered, is used to evaluate the strip edge. This is the distance sensor for which the expression

minimal ist.is minimal.

Umax ist dabei die Ausgangsspannung eines unbedeckten Ab­ standssensors und Umin die Ausgangsspannung eines vollständig bedeckten Abstandssensors. Oben bezeichnete Berechnungen wer­ den vorteilhafterweise mittels einer nicht dargestellten Re­ cheneinrichtung durchgeführt. U max is the output voltage of an uncovered distance sensor and U min is the output voltage of a completely covered distance sensor. The above-mentioned calculations are carried out advantageously by means of a computing device (not shown).

Auf diese Weise ist es möglich, einen sehr genauen Wert für die Position der Bandkante des Metallbandes 1 zu erhalten. Dieser kann vorteilhafterweise für die weitere Steuerung der Walzstraße verwendet werden.In this way it is possible to obtain a very precise value for the position of the band edge of the metal band 1 . This can advantageously be used for the further control of the rolling mill.

Claims (10)

1. Verfahren zur Bestimmung der Position (P) einer Kante ei­ nes gewalzten Metallbandes (1) mittels zumindest eines Ab­ standssensors (2) zur Messung des Abstands (h) des Abstands­ sensors (2) von dem Metallband (1), wobei der Meßbereich (9) des Abstandssensors (2) unvollständig vom Metallband über­ deckt ist, und wobei aus dem mittels des Abstandssensors (2) gemessenen Abstands (h) und einem Wert des tatsächlichen Ab­ stands (h) des Abstandssensors von dem Metallband (1) der Grad der Überdeckung des Metallbandes (1) des Abstandssensors (2) durch das Metallband (1) errechnet und daraus die Positi­ on (P) der Kante des Metallbandes (1) bestimmt wird.1. A method for determining the position (P) of an edge of a rolled metal strip ( 1 ) by means of at least one position sensor ( 2 ) for measuring the distance (h) of the distance sensor ( 2 ) from the metal strip ( 1 ), the measuring range ( 9 ) of the distance sensor ( 2 ) is incompletely covered by the metal strip, and wherein from the distance (h) measured by means of the distance sensor ( 2 ) and a value of the actual distance (h) of the distance sensor from the metal strip ( 1 ) the degree the coverage of the metal strip ( 1 ) of the distance sensor ( 2 ) is calculated by the metal strip ( 1 ) and from this the position (P) of the edge of the metal strip ( 1 ) is determined. 2. Verfahren zur Bestimmung der Position (P) einer Kante ei­ nes gewalzten Metallbandes (1) mittels zumindest zweier Ab­ standssensoren (2, 3) zur Messung der Abstände (h) der Ab­ standssensoren (2, 3) von dem Metallband (1), wobei der Meß­ bereich (9) eines ersten Abstandssensors (2) unvollständig und der Meßbereich (10) eines zweiten Abstandssensors (3) vollständig vom Metallband (1) überdeckt ist, und wobei aus den mittels der Abstandssensoren (2, 3) gemessenen Abständen (h) der Grad der Überdeckung des Metallbandes (1) des ersten Abstandssensors (2) durch das Metallband (1) errechnet und daraus die Position (P) der Kante des Metallbandes (1) be­ stimmt wird.2. Method for determining the position (P) of an edge of a rolled metal strip ( 1 ) by means of at least two distance sensors ( 2 , 3 ) for measuring the distances (h) of the distance sensors ( 2 , 3 ) from the metal strip ( 1 ) , The measuring range ( 9 ) of a first distance sensor ( 2 ) is incomplete and the measuring range ( 10 ) of a second distance sensor ( 3 ) is completely covered by the metal strip ( 1 ), and from the distances measured by means of the distance sensors ( 2 , 3 ) (h) the degree of coverage of the metal strip ( 1 ) of the first distance sensor ( 2 ) is calculated by the metal strip ( 1 ) and from this the position (P) of the edge of the metal strip ( 1 ) is determined. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Position (P) der Kante des Metallbandes (1) aus den gemessenen Abständen mehrerer Abstandssensoren (3, 4, 5, 6, 7), deren Meßbereich (10, 11, 12, 13, 14) vollständig vom Me­ tallband (1) überdeckt ist, bestimmt wird.3. The method according to claim 2, characterized in that the position (P) of the edge of the metal strip ( 1 ) from the measured distances of a plurality of distance sensors ( 3 , 4 , 5 , 6 , 7 ), the measuring range ( 10 , 11 , 12 , 13 , 14 ) is completely covered by the metal band ( 1 ), is determined. 4. Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Position (P) der Kante des Metallbandes (1) aus zeit­ lichen Mittelwerten der mittels der Abstandssensoren (2, 3, 4, 5, 6, 7, 8) gemessenen Abstände bestimmt wird.4. The method according to claim 1, 2 or 3, characterized in that the position (P) of the edge of the metal strip ( 1 ) from temporal mean values of the means of the distance sensors ( 2 , 3 , 4 , 5 , 6 , 7 , 8 ) measured distances is determined. 5. Verfahren nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, daß die Position (P) der Kante des Metallbandes (1) mittels abgespeicherter Kalibrierungskurven bestimmt wird.5. The method according to claim 1, 2, 3 or 4, characterized in that the position (P) of the edge of the metal strip ( 1 ) is determined by means of stored calibration curves. 6. Verfahren zur Bestimmung der Breite des Metallbandes (1), dadurch gekennzeichnet, daß die Positionen (P) beider Kanten des Metallbandes (1) ge­ mäß einem Verfahren nach einem der vorhergehenden Ansprüche bestimmt und die Positionen (P) beider Kanten des Metallban­ des (1) voneinander subtrahiert werden.6. A method for determining the width of the metal strip ( 1 ), characterized in that the positions (P) of both edges of the metal strip ( 1 ) ge according to a method according to any one of the preceding claims and the positions (P) of both edges of the metal strip ( 1 ) subtracted from each other. 7. Einrichtung zur Bestimmung der Position (P) einer Kante eines gewalzten Metallbandes (1) zur Durchführung eines Ver­ fahrens nach einen der vorhergehenden Ansprüche, wobei die Einrichtung zur Bestimmung der Position (P) einer Kante des gewalzten Metallbandes (1) zumindest einen Abstandssensor (2) zur Messung des Abstands (h) des Abstandssensors (2) von dem Metallband (1) aufweist, wobei der Meßbereich (9) des Ab­ standssensors (2) unvollständig vom Metallband (1) überdeckt ist, und wobei die Einrichtung zur Bestimmung der Position (P) der Kante des gewalzten Metallbandes (1) eine Rechenein­ richtung aufweist, die aus dem mittels des Abstandssensors (2) gemessenen Abstand und einem Wert des tatsächlichen Ab­ stands (h) des Abstandssensors (2) von dem Metallband (1) den Grad der Überdeckung des Metallbandes (1) des Abstandssensors (2) durch das Metallband (1) errechnend und daraus die Posi­ tion (P) der Kante des Metallbandes (1) bestimmend ausgebil­ det ist. 7. A device for determining the position (P) of an edge of a rolled metal strip ( 1 ) for carrying out a method according to one of the preceding claims, wherein the device for determining the position (P) of an edge of the rolled metal strip ( 1 ) has at least one distance sensor ( 2 ) for measuring the distance (h) of the distance sensor ( 2 ) from the metal strip ( 1 ), wherein the measuring range ( 9 ) of the level sensor ( 2 ) is incompletely covered by the metal strip ( 1 ), and wherein the device for determination the position (P) of the edge of the rolled metal strip ( 1 ) has a computing device which consists of the distance measured by means of the distance sensor ( 2 ) and a value of the actual distance (h) of the distance sensor ( 2 ) from the metal strip ( 1 ) calculating the degree of coverage of the metal strip ( 1 ) of the distance sensor ( 2 ) by the metal strip ( 1 ) and from this determining the position (P) of the edge of the metal strip ( 1 ) et is. 8. Einrichtung zur Bestimmung der Position (P) einer Kante eines gewalzten Metallbandes (1) zur Durchführung eines Ver­ fahrens nach einen der Ansprüche 1 bis 6, wobei die Einrich­ tung zur Bestimmung der Position (P) der Kante eines gewalz­ ten Metallbandes (1) zumindest zwei Abstandssensoren (2, 3) zur Messung der Abstände (h) der Abstandssensoren (2, 3) von dem Metallband (1) aufweist, wobei der Meßbereich (9) eines ersten Abstandssensors (2) unvollständig und der Meßbereich (10) eines zweiten Abstandssensors (3) vollständig vom Me­ tallband (1) überdeckt ist, und wobei die Einrichtung zur Be­ stimmung der Position (P) der Kante eines gewalzten Metall­ bandes (1) eine Recheneinrichtung aufweist, die aus den mit­ tels der Abstandssensoren (2, 3) gemessenen Abständen (h) den Grad der Überdeckung des Metallbandes (1) des ersten Ab­ standssensors (2) durch das Metallband (1) errechnend und daraus die Position (P) der Kante des Metallbandes (1) be­ stimmend ausgebildet ist.8. A device for determining the position (P) of an edge of a rolled metal strip ( 1 ) for carrying out a method according to one of claims 1 to 6, wherein the device for determining the position (P) of the edge of a rolled metal strip ( 1 ) has at least two distance sensors ( 2 , 3 ) for measuring the distances (h) of the distance sensors ( 2 , 3 ) from the metal strip ( 1 ), the measuring range ( 9 ) of a first distance sensor ( 2 ) being incomplete and the measuring range ( 10 ) a second distance sensor ( 3 ) is completely covered by the metal strip ( 1 ), and the device for determining the position (P) of the edge of a rolled metal strip ( 1 ) has a computing device which consists of the means of the distance sensors ( 2 , 3 ) measured distances (h) the degree of coverage of the metal strip ( 1 ) from the first position sensor ( 2 ) by the metal strip ( 1 ) and calculating the position (P) of the edge of the metal strip ( 1 ) mmend is formed. 9. Einrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Abstandssensoren (2, 3, 4, 5, 6, 7, 8) als Wirbel­ stromsensoren, kapazitive Abstandssensoren, optische Ab­ standssensoren oder Ultraschallabstandssensoren ausgebildet sind.9. Device according to claim 7 or 8, characterized in that the distance sensors ( 2 , 3 , 4 , 5 , 6 , 7 , 8 ) are designed as eddy current sensors, capacitive distance sensors, optical from stand sensors or ultrasonic distance sensors. 10. Einrichtung nach einem der Ansprüche 7 bis 9, dadurch, gekennzeichnet, daß die Abstandssensoren (2, 3, 4, 5, 6, 7, 8) in Querrich­ tung des Metallbandes (1) versetzt angeordnet sind.10. Device according to one of claims 7 to 9, characterized in that the distance sensors ( 2 , 3 , 4 , 5 , 6 , 7 , 8 ) in the transverse direction of the metal strip ( 1 ) are arranged offset.
DE1998139287 1998-08-28 1998-08-28 Method and device for determining the position of the edge of a metal strip Expired - Fee Related DE19839287C5 (en)

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DE1998139287 DE19839287C5 (en) 1998-08-28 1998-08-28 Method and device for determining the position of the edge of a metal strip

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016008273U1 (en) 2016-02-08 2017-06-09 Asinco GmbH Device for measuring the width of a metal strip produced by strip rolling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442154A1 (en) * 1984-11-17 1986-05-28 Elektro-Mechanik Gmbh, 5963 Wenden METHOD FOR DETECTING THE POSITION OF THE STRIP EDGE OF A MATERIAL RAIL
DE4126921A1 (en) * 1991-08-14 1993-02-18 Elmeg METHOD AND DEVICE FOR INDUCTIVE MEASUREMENT OF THE POSITION OF A METAL STRIP

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451886B (en) * 1986-10-10 1987-11-02 Sten Linder SET AND DEVICE FOR SOUND-FREE SEAT OF SIZES OF OR CONNECTED TO ELECTRICALLY CONDUCTIVE MATERIAL
SE468405B (en) * 1991-05-02 1993-01-11 Asea Brown Boveri METHOD OF DETERMINATION OF METALLIC MATERIALS AND EDGE METERS FOR IMPLEMENTATION OF THE PROCEDURE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442154A1 (en) * 1984-11-17 1986-05-28 Elektro-Mechanik Gmbh, 5963 Wenden METHOD FOR DETECTING THE POSITION OF THE STRIP EDGE OF A MATERIAL RAIL
DE4126921A1 (en) * 1991-08-14 1993-02-18 Elmeg METHOD AND DEVICE FOR INDUCTIVE MEASUREMENT OF THE POSITION OF A METAL STRIP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016008273U1 (en) 2016-02-08 2017-06-09 Asinco GmbH Device for measuring the width of a metal strip produced by strip rolling

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DE19839287C5 (en) 2008-02-14
DE19839287C2 (en) 2000-02-17

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